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Narrow the explicit iterator category of our iterator adaptors to reflect their implicit category.

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This commit is contained in:
Mathew Sutcliffe
2016-08-11 00:44:50 +01:00
parent 4071fcb6d3
commit ffa24411d2
1 changed files with 3 additions and 3 deletions
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6
src/blackmisc/iterator.h
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@@ -148,7 +148,7 @@ namespace BlackMisc
* By creating a CRange from such iterators, it is possible to perform a transformation on a container without copying elements.
*/
template <class I, class F> class TransformIterator
: public std::iterator<std::input_iterator_tag,
: public std::iterator<std::forward_iterator_tag,
std::decay_t<decltype(std::declval<F>()(std::declval<typename std::iterator_traits<I>::value_type>()))>>
{
public:
@@ -213,7 +213,7 @@ namespace BlackMisc
*
* By creating a CRange from such iterators, it is possible to return the results of predicate methods without copying elements.
*/
template <class I, class F> class ConditionalIterator : public std::iterator<std::input_iterator_tag, typename std::iterator_traits<I>::value_type>
template <class I, class F> class ConditionalIterator : public std::iterator<std::forward_iterator_tag, typename std::iterator_traits<I>::value_type>
{
public:
//! Constructor.
@@ -277,7 +277,7 @@ namespace BlackMisc
/*!
* Iterator wrapper which concatenates zero or more pairs of begin and end iterators.
*/
template <class I> class ConcatIterator : public std::iterator<std::input_iterator_tag, typename std::iterator_traits<I>::value_type>
template <class I> class ConcatIterator : public std::iterator<std::forward_iterator_tag, typename std::iterator_traits<I>::value_type>
{
public:
//! Constructor.